Results 71 to 80 of about 607,065 (288)
Polarization singularities in superposition of vector beams
Optics Express, 2013 We present a systematic study of the superposition of two vector Laguerre-Gaussian (LG) beams. Propagation depended field distribution obtained from the superposition of two vector LG beams has many interesting features of intensity and polarization.
Sunil, Vyas +2 more
openaire +2 more sources
Stability of singular jump-linear systems with a large state space : a two-time-scale approach [PDF]
, 2012 This paper considers singular systems that involve both continuous dynamics and discrete events with the coefficients being modulated by a continuous-time Markov chain. The underlying systems have two distinct characteristics.
Yuan, Chenggui +3 more
core +3 more sources
AIP AdvancesObjective: This study aims to introduce a configurable standard-type (CST) coil design methodology that can accommodate different stimulation needs through the overlapping of standard coil components, while ensuring the performance of CST coil approaches
Lianyong Wei, Jun Zou
doaj +1 more source
Families of singular and subsingular vectors of the topological N = 2 superconformal algebra [PDF]
, 2014 We analyze several issues concerning the singular vectors of the topological N = 2 superconformal algebra. First we investigate which types of singular vectors exist, regarding the relative U(1) charge and the BRST-invariance properties, finding four ...
Gato Rivera, Beatriz +1 more
core +1 more source
Advanced Functional Materials, EarlyView.ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti +16 more
wiley +1 more source
A Note on Inclusion Intervals of Matrix Singular Values
Journal of Applied Mathematics, 2012 We establish an inclusion relation between two known inclusion intervals of matrix singular values in some special case. In addition, based on the use of positive scale vectors, a known inclusion interval of matrix singular values is also improved.
Shu-Yu Cui, Gui-Xian Tian
doaj +1 more source
Ensemble singular vectors and their use as additive inflation in EnKF [PDF]
Tellus: Series A, Dynamic Meteorology and Oceanography, 2015 Given an ensemble of forecasts, it is possible to determine the leading ensemble singular vector (ESV), that is, the linear combination of the forecasts that, given the choice of the perturbation norm and forecast interval, will maximise the growth of ...
Shu-Chih Yang +2 more
doaj +1 more source
Targeting Observations Using Singular Vectors
Journal of the Atmospheric Sciences, 1999 Abstract Singular vectors with maximum energy at final time inside a verification area are used to identify the target area where extra observations should be taken, at an initial time, to reduce the forecast error inside the verification area itself.
Buizza R, Montani A
openaire +2 more sources
Perturbation of Linear Forms of Singular Vectors Under Gaussian Noise
, 2016 Let A∈ ℝm×n be a matrix of rank r with singular value decomposition (SVD) A = ∑k = 1 rσk(uk ⊗ vk), where {σk, k = 1, …, r} are singular values of A (arranged in a non-increasing order) and uk∈ ℝm, vk∈ ℝn, k= 1, …, r are the corresponding left and right ...
Dong Xia +3 more
core +1 more source
Hausdorff dimension of weighted singular vectors in $\mathbb R^2$
, 2020 International audienceLet w = (w1, w2) be a pair of positive real numbers with w1 + w2 = 1 and w1 ≥ w2. We show that the set of w-weighted singular vectors in R2 has Hausdorff dimension 2− 1 /(1+w1) extends the previous work of Yitwah Cheung on the ...
Tamam, Nattalie +3 more
core +1 more source